{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2020-1340 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2020-1340 yet. Limit exposure of the affected software until one is available.","what":"CVE-2020-1340 is a medium-severity cross-site scripting vulnerability in Microsoft NuGetGallery, published on 9 Jun 2020. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link."},"fix_prompt":"Check this codebase for CVE-2020-1340 and fix it if it is affected.\n\nWhat it is: CVE-2020-1340 is a medium-severity cross-site scripting vulnerability in Microsoft NuGetGallery, published on 9 Jun 2020. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.\nExploitation: There is no known exploitation of CVE-2020-1340 in the wild and no public exploit code.\n\nAffected product: Microsoft NuGetGallery. No package-level version data is available, so check the vendor advisory linked from the reference page.\n\nTask:\n1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.\n2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.\n3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.\n4. Run the tests and summarise what changed and why.\n5. If nothing in the project is affected, say so and change nothing.\n\nReference: https://insights.sbomify.com/CVE-2020-1340/ (Markdown: https://insights.sbomify.com/CVE-2020-1340/index.md)","id":"CVE-2020-1340","markdown":"https://insights.sbomify.com/CVE-2020-1340/index.md","name":"CVE-2020-1340","record":{"aliases":["GHSA-jfw3-6x4x-gprc"],"analysis":{"component_type":"web_application","fix_type":"patch","impacts":["code_execution","security_bypass"],"network_reachable":"yes","non_default_config":false,"product_category":"NuGet package repository","requires_auth":"low_privilege","summary":"Attackers can inject malicious scripts into NuGet package metadata, potentially compromising user sessions or executing code in the NuGetGallery web interface.","user_interaction":"required","vuln_class":"xss"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"microsoft","cpe":[{"product":"nugetgallery","vendor":"microsoft"}],"cvss":{"score":5.4,"severity":"medium","source":"nvd","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N","version":"3.1"},"cwes":[{"id":"CWE-79","name":"Improper Neutralization of Input During Web Page Generation"}],"description":"A spoofing vulnerability exists when the NuGetGallery does not properly sanitize input on package metadata values, aka 'NuGetGallery Spoofing Vulnerability'.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":false,"headline":"Cross-site scripting in NuGetGallery","id":"CVE-2020-1340","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"xss","year":"2020"},"n_packages":0,"n_references":1,"next":{"headline":"Information disclosure in Microsoft 365 Apps for Enterprise for 32-bit Systems","id":"CVE-2020-1342"},"packages":[],"prev":{"headline":"Windows Media Remote Code Execution Vulnerability","id":"CVE-2020-1339"},"products":["NuGetGallery"],"published":"2020-06-09","related":[{"cvss_score":8.2,"headline":"XSS vulnerability in NuGetGallery HTML attributes handling","id":"CVE-2024-47604","kev_date_added":null,"published":"2024-10-01"},{"cvss_score":6.9,"headline":"XSS Vulnerability in NuGetGallery's Markdown Autolinks Processing","id":"CVE-2024-54138","kev_date_added":null,"published":"2024-12-06"},{"cvss_score":6.1,"headline":"NuGetGallery's Markdown Autolinks Processing Vulnerable to Cross-site Scripting","id":"CVE-2024-37304","kev_date_added":null,"published":"2024-06-12"}],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"US public information, NVD API terms","name":"NVD"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":null,"exploitation":null,"technical_impact":null},"state":"PUBLISHED","updated":"2024-08-04","vendors":["Microsoft"]},"summary":"Attackers can inject malicious scripts into NuGet package metadata, potentially compromising user sessions or executing code in the NuGetGallery web interface.","url":"https://insights.sbomify.com/CVE-2020-1340/"}